Lake Darling
Renville County, WisconsinEutrophic
Lake Darling is a productive, nutrient-rich eutrophic lake in Renville County, ND. Water quality is graded C based on 2 sampling years through 2021. Compared to the 2 other monitored lakes in Renville County, Lake Darling ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-08-05. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5.4 ft. Chlorophyll-a: 10.7 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.4 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 10.7 µg/L | C |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #3 of 3 lakes in Renville County
Cleaner Lakes Within 30 Miles
Lake Darling holds Grade C. 2 nearby lakes hold higher grades.
- BLake DarlingRenville County · 6.6 mi · Higher grade (C → B)
- BLake DarlingRenville County · 9.1 mi · Higher grade (C → B)
Nearby Lakes in Renville County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
EPA Impairment Status
Lake Darling is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit ND-09010008-001-L_00 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-08-05
Monitoring stations: 1